Tootfinder

#NowPlaying Guided by Julian Cope’s “The Modern Antiquarian” and Aurbrey Burl’s “A Guide to the Stone Circles of Britain”, Llyn Y Cwn aka Ben Powell makes abyssal dark ambient soundscapes with site-specific field recordings from Wales and beyond. https://…

Llyn Y Cwn
Llyn Y Cwn is a field recording based dark ambient project with focus on atmosphere, immersion and environment. Ben Powell has been making electronic music since the 90s, drawing inspiration from his native North Wales landscape and his participation on Arctic research cruises. Llyn Y Cwn (Welsh - lake of the dogs) is a small lake at 715m in the Glyder mountain range of Snowdonia, North Wales.

y'all have no idea how much work on all levels went into this little beta release 😅
https://pypi.org/project/cffi/2.0.0b1/

Carnegie Supernova Project: Fast-Declining Type Ia Supernovae as Cosmological Distance Indicators
M. M. Phillips, Syed A. Uddin, Christopher R. Burns, Nicholas B. Suntzeff, C. Ashall, E. Baron, L. Galbany, P. Hoeflich, E. Y. Hsiao, Nidia Morrell, S. E. Persson, Maximilian Stritzinger, Carlos Contreras, Wendy L. Freedman, Kevin Krisciunas, S. Kumar, J. Lu, Anthony L. Piro, M. Shahbandeh

Carnegie Supernova Project: Fast-Declining Type Ia Supernovae as Cosmological Distance Indicators
In this paper, the suitability of fast-declining Type Ia supernovae (SNe Ia) as cosmological standard candles is examined utilizing a Hubble Flow sample of 43 of these objects observed by the Carnegie Supernova Project (CSP). We confirm previous suggestions that fast-declining SNe Ia offer a viable method for estimating distances to early-type galaxies when the color-stretch parameter, $s_{BV}$, is used as a measure of the light curve shape. As a test, we employ the Tripp (1998) method, which m…

At 3:00 UTC Saturday the "24 Hours of the #Planetarium" online event begins, with new streams starting every 4 hours:
https://www.youtube.com/watch?v=pkq-i57J_LY
https://www.youtube.com/watch?v=wHf0Sv1c2WM
https://www.youtube.com/watch?v=4kDL8_cobtE
https://www.youtube.com/watch?v=iC2pCZttA68
https://www.youtube.com/watch?v=W0Q8uN9iBq4
https://www.youtube.com/watch?v=NMmDUswjVsY
In one playlist: https://www.youtube.com/watch?v=pkq-i57J_LY&list=PLqscU0F-NkNTEtXqzbT92y-zFWjA_Ie6o&index=9 - and see https://iauoutreach.org/global-projects/100-hours-of-astronomy for the "100 Hours of Astronomy" project this is part of.

"China starts building world’s biggest hydropower dam"
#China #Energy #Renewables

Y'know what rubs me weird? Open Source guys who are all into competing projects. Like sure sometimes you gotta fork 'cause people's desires really are incompatible, but here we are with a system that lets us join forces for the greater good and here you are making Yet Another Thingy instead of collaborating.
I kinda fundamentally don't trust you to behave well in your project if this is the foundation.
There's reasons for forks and alternatives but come on

The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg$^2$ of the sky
D. Anbajagane, C. Chang, A. Drlica-Wagner, C. Y. Tan, M. Adamow, R. A. Gruendl, L. F. Secco, Z. Zhang, M. R. Becker, P. S. Ferguson, N. Chicoine, K. Herron, A. Alarcon, R. Teixeira, D. Suson, A. J. Shajib, J. A. Frieman, A. N. Alsina, A. Amon, F. Andrade-Oliveira, J. Blazek, C. R. Bom, H. Camacho, J. A. Carballo-Bello, A…

The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg$^2$ of the sky
We present constraints on models of cosmology and astrophysics using cosmic shear data vectors from three datasets: the northern and southern Galactic cap of the Dark Energy Camera All Data Everywhere (DECADE) project, and the Dark Energy Survey (DES) Year 3. These data vectors combined consist of 270 million galaxies spread across 13,000 ${\rm deg}^2$ of the sky. We first extract constraints for $Λ$CDM cosmology and find $S_8= 0.805^{+0.019}_{-0.019}$ and $Ω_{\rm m} = 0.262^{+0.023}_{-0.036}…

On the sensitivity of different galaxy properties to warm dark matter
Bel\'en Costanza, Bonny Y. Wang, Francisco Villaescusa-Navarro, Alex M. Garcia, Jonah C. Rose, Mark Vogelsberger, Paul Torrey, Arya Farahi, Xuejian Shen, Ilem Leisher
https://arxiv.org/abs/2510.05037

On the sensitivity of different galaxy properties to warm dark matter
We study the impact of warm dark matter (WDM) particle mass on galaxy properties using 1,024 state-of-the-art cosmological hydrodynamical simulations from the DREAMS project. We begin by using a Multilayer Perceptron (MLP) coupled with a normalizing flow to explore global statistical descriptors of galaxy populations, such as the mean, standard deviation, and histograms of 14 galaxy properties. We find that subhalo gas mass is the most informative feature for constraining the WDM mass, achievin…